What is MIME type "text/x-assembly"?

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

text/x-assembly designates files that contain assembly language source code. It tells programs, text editors, and web servers that the file’s content is a text-based representation of low-level instructions written in an assembly language.

This MIME type is used primarily for assembling code that a computer’s processor understands. It informs software to apply syntax highlighting and proper text handling for better readability and editing.

• Main use: Identifies assembler source code files.
• Functionality: Helps development tools recognize and format low-level code.
• Additional uses: Serves in build pipelines and code repositories where assembly code documentation is required.

Files with extensions such as S and ASM fall under this MIME type. They are processed as text, allowing for manual editing, debugging, and clear structure during development.

For extra technical details and updates on MIME types, visit the IANA media types registry.

Associated file extensions

.s, .asm

Usage Examples

HTTP Header

When serving content with this MIME type, set the Content-Type header:

    Content-Type: text/x-assembly
  

HTML

In HTML, you can specify the MIME type in various elements:

    <a href="file.dat" type="text/x-assembly">Download file</a>
  

Server-side (Node.js)

Setting the Content-Type header in Node.js:

    const http = require('http');
    
    http.createServer((req, res) => {
      res.setHeader('Content-Type', 'text/x-assembly');
      res.end('Content here');
    }).listen(3000);
  

Associated file extensions

.s, .asm